10721815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 15192576

約数和(自身を除く): 4470761

約数列:

[1, 5, 13, 17, 31, 65, 85, 155, 221, 313, 403, 527, 1105, 1565, 2015, 2635, 4069, 5321, 6851, 9703, 20345, 26605, 34255, 48515, 69173, 126139, 164951, 345865, 630695, 824755, 2144363, 10721815]

約数ペア:

[(1, 10721815), (5, 2144363), (13, 824755), (17, 630695), (31, 345865), (65, 164951), (85, 126139), (155, 69173), (221, 48515), (313, 34255), (403, 26605), (527, 20345), (1105, 9703), (1565, 6851), (2015, 5321), (2635, 4069)]